/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package l1j.jrwz.server.model.npc.action;

import java.lang.reflect.Constructor;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import org.w3c.dom.Element;

public class L1NpcActionFactory {
    private static Logger _log = Logger.getLogger(L1NpcActionFactory.class
            .getName());
    private static Map<String, Constructor<? extends L1NpcXmlAction>> _actions = new HashMap<String, Constructor<? extends L1NpcXmlAction>>();

    static {
        try {
            _actions.put("Action", loadConstructor(L1NpcListedAction.class));
            _actions.put("MakeItem", loadConstructor(L1NpcMakeItemAction.class));
            _actions.put("ShowHtml", loadConstructor(L1NpcShowHtmlAction.class));
            _actions.put("SetQuest", loadConstructor(L1NpcSetQuestAction.class));
            _actions.put("Teleport", loadConstructor(L1NpcTeleportAction.class));
        } catch (NoSuchMethodException e) {
            _log.log(Level.SEVERE, "NpcAction 无法加载", e);
        }
    }

    private static Constructor<? extends L1NpcXmlAction> loadConstructor(
            Class<? extends L1NpcXmlAction> c) throws NoSuchMethodException {
        return c.getConstructor(new Class[] { Element.class });
    }

    public static L1NpcAction newAction(Element element) {
        try {
            Constructor<? extends L1NpcXmlAction> con = _actions.get(element
                    .getNodeName());
            return con.newInstance(element);
        } catch (NullPointerException e) {
            _log.warning(element.getNodeName() + " 未定义的NPC动作");
        } catch (Exception e) {
            _log.log(Level.SEVERE, "NpcAction 无法加载", e);
        }
        return null;
    }
}
